Patents Assigned to Suntech, Inc.
  • Patent number: 4074242
    Abstract: A point selection and display system for monitoring various parameters of a process, which enables the operator to select the particular parameters which are to be monitored and to select the particular display panel on which the value of each parameter is to be indicated. Also included in this system is an identification code system for indicating which parameter is being monitored by the particular display panel. The switching circuit used within this system is designed to permit the use of as many display panels as are necessary and enables the system to monitor as many process parameters as may be desired.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: February 14, 1978
    Assignee: Suntech, Inc.
    Inventor: Robert Mayer
  • Patent number: 4073304
    Abstract: A system for calibrating the flow rate of a pump, and especially designed for a pump which is normally used in a system to blend highly vaporous and odorous fluids, in which the blending fluid discharged from the pump is diverted from its normal flow stream into a closed calibration system which has a sight glass for receiving the fluid discharged by the pump. After a predetermined number of cycles by the pump, the amount of fluid within the sight glass is determined and then the calibration system is purged by a displacement gas so that the offensive material is returned back to its original source to be reused in its normal fashion.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: February 14, 1978
    Assignee: Suntech, Inc.
    Inventors: Julius Lerner, Edmundo J. Iglesias
  • Patent number: 4072603
    Abstract: A process for making technical white oils in a single step hydrogenation and without the need for acid treating to meet white oil specification by hydrogenating a hydrocracked solvent extracted lubricating oil distilling between 650.degree. and 1050.degree. F., having a SUS/100.degree. F. viscosity of about 200 and an aromatic content of less than about 15% in a single step at 600.degree. to 700.degree. F., and at 2000 to 3000 psig in the presence of a catalyst comprising nickel and tungsten supported on silica-alumina, subjecting the hydrogenated solvent extracted lube oil to atmospheric distillation to remove distillates useful as fuels and subjecting the bottoms of said atmospheric distillation to a vacuum distillation to yield various viscosity grades of technical white oils.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: February 7, 1978
    Assignee: Suntech, Inc.
    Inventor: William W. Wentzheimer
  • Patent number: 4071086
    Abstract: A pulling tool apparatus for helping equipment descend down a wellbore, such as logging tools being dropped into a deviated wellbore. A first embodiment employs a mass slidably located inside the pulling tool which is acted on so that it is propelled in an upward direction at a fast rate and then propelled in a downward direction at a slow rate so that the net effect of the moving mass on the logging cable is to pull it in a downward direction because of the reaction forces exerted on the tool itself by the moving mass. An alternative embodiment is provided wherein the mass is driven downward against a stop plate to create the downward force for the pulling tool. An additional feature to improve performance is a set of fins surrounding the outside of the pulling tool which will fold when the tool moves in a downward direction and will open up to offer resistance to motion in an upward direction.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: January 31, 1978
    Assignee: Suntech, Inc.
    Inventor: John D. Bennett
  • Patent number: 4071817
    Abstract: A method for testing the electrolyte of a high temperature electrochemical cell and a system for carrying out this testing method so that the condition of the electrolyte can be monitored during its use. The method includes impressing an alternating current across the electrodes of the electrolyte of the high temperature electrochemical cell to determine the resistance of the electrolyte and the electrodes connected to the electrolyte.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: January 31, 1978
    Assignee: Suntech, Inc.
    Inventor: George R. Bahl
  • Patent number: 4071059
    Abstract: A control system for a gasoline dispensing nozzle which includes a locking system for placing the nozzle in an inoperative mode once the nozzle automatically shuts off. Resetting of the locking system is then required before operation of the nozzle can again be commenced. The locking system includes a biased member which maintains the automatic shut-off system in its disabling mode once it disables the nozzle. This locking system is designed primarily for use on a dispensing nozzle with a vapor receiving system and is used to discourage an operator of the nozzle from overfilling a gasoline tank, which results in increasing the risk of spilling gasoline or forcing gasoline back through the vapor return line. An alternative embodiment using magnetic locking means is also provided.An actuator for the resetting operation is also provided for limiting the number of times the locking system can be reset during each filling operation.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: January 31, 1978
    Assignee: Suntech, Inc.
    Inventor: William B. Hansel
  • Patent number: 4070269
    Abstract: In the process of manufacturing a refrigeration oil where an oil stock is dewaxed by forming a complex with urea in the presence of an activator, the improvement of adding hot vacuum gas oil to the separated urea complex whereby the activator is flashed off and is recycled for reuse and the slurry of the urea complex in the gas oil is treated with hot water to break the adduct and separate a water-urea mixture and oil and paraffin. The improved method enables accurate and uniform temperature control and degradation of urea is suppressed.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: January 24, 1978
    Assignee: Suntech, Inc.
    Inventors: Ronald W. Reynolds, John D. Tice, John S. Nutter
  • Patent number: 4070399
    Abstract: A process for the preparation of 1,4-bis-(aminomethyl)cyclohexane by hydrogenating a solvent solution of terephthalonitrile containing at least about 5% by volume of ammonia, said hydrogenation being conducted at a temperature between about 100.degree. and about 150.degree. C, at a pressure of at least about 750 psig, and in the presence of an oxide supported catalyst consisting of from about 10% to 45% by weight of palladium and from about 90% to about 55% by weight of ruthenium.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: January 24, 1978
    Assignee: Suntech, Inc.
    Inventor: Walter A. Butte, Jr.
  • Patent number: 4064072
    Abstract: In the process of making dicyanonaphthalene by reacting a di-lower alkylnaphthalene, ammonia and oxygen under ammoxidation conditions, the improvement which comprises carrying out said ammoxidation in the presence of a supported alkali-metal vanadium bronze catalyst, promoted with iron and with a molar ratio of ammonia to dialkylnaphthalene of from at least about 10:1 to about 30:1. The invention also embodies the iron promoted catalyst.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: December 20, 1977
    Assignee: Suntech, Inc.
    Inventor: Ronald D. Bushick
  • Patent number: 4059135
    Abstract: An interlock system for a fuel dispensing nozzle which prevents its operation until the nozzle is properly inserted into the fillpipe of a vehicle. The interlock system includes an actuation system which responds to the nozzle resting on the fillpipe opening at a predetermined point along the discharge spout of the nozzle and a valve located at the outlet of the vent tube from the automatic shut-off system. The interlock system is biased in such a manner that the valve remains closed at all times unless the nozzle is resting in the fillpipe in the proper manner. In this manner the valve causes the automatic shut-off system to disable the nozzle when it is not properly inserted in the fillpipe and permits the automatic shut-off system to act in its normal fashion when properly inserted, so that the nozzle is shut off when the liquid level in the fillpipe reaches the end of the discharge spout.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: November 22, 1977
    Assignee: Suntech, Inc.
    Inventor: William B. Hansel
  • Patent number: 4057967
    Abstract: A system for preventing a surface ice sheet from cracking and failing under a load based upon the principle of counteracting lateral tension forces in the lower portion of the ice sheet. A matrix of cables is placed on the bottom surface of the ice, and the ends of the cables are anchored on the top surface of the ice. As new ice forms, the matrix becomes embedded in the ice sheet and reinforces it in tension.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: November 15, 1977
    Assignee: Suntech, Inc.
    Inventor: William L. Hill
  • Patent number: 4055587
    Abstract: In the process of converting alkyl substituted aromatic hydrocarbon to nitriles by ammoxidation where the aromatic hydrocarbon compound, oxygen and ammonia are reacted in the presence of an ammoxidation catalyst under ammoxidation conditions to obtain the nitrile, the improvement of supplying the total amount of ammonia reactant to the reactor as an aqueous solution of ammonia, carbon dioxide and their hydrolysis products (e.g. an ammonium carbonate solution). The major advantage of the process is that it achieves excellent conversion to nitrile without excessive burn of ammonia or organic reactant and avoids the necessity to separate ammonia from off-gases since the aqueous ammonia and carbonate containing solution is suitable for recycle.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: October 25, 1977
    Assignee: Suntech, Inc.
    Inventor: Richard V. Norton
  • Patent number: 4054643
    Abstract: A process for the preparation of essentially pure ferromagnetic .gamma.-Fe.sub.2 O.sub.3 by bringing a solution of a water soluble iron salt to a pH between about 8.0 and 11.0 to obtain a suspension of iron hydroxide, passing air through the iron hydroxide suspension at a temperature of from about 25.degree. to about 80.degree. C., and separating said pure .gamma.-Fe.sub.2 O.sub.3.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: October 18, 1977
    Assignee: Suntech, Inc.
    Inventor: Margaret M. Desmond
  • Patent number: 4049029
    Abstract: A valve system for the vapor receiving system of a gasoline dispensing nozzle which acts to prevent the flow of liquid gasoline into the vapor return line in the event that the automatic shut-off system of the nozzle fails to turn the nozzle off. The valve system has a valve seat located at the point where the vapor return line connects to the vapor receiving system and a floating member suspended below the valve seat in such a manner that when the vapor receiving chamber fills with gasoline, the floating member covers the valve seat so that no gasoline flows back through the vapor return line. A shield can also be provided to prevent closure of the floating member by the normal flow of vapors.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: September 20, 1977
    Assignee: Suntech, Inc.
    Inventor: William B. Hansel
  • Patent number: 4048029
    Abstract: In the process of preparing hydrogen by passing a gas containing carbon monoxide over one side of a membrane which transports ionic oxygen and by passing steam over the other side of said membrane whereby the steam is converted to hydrogen and the carbon monoxide is oxidized to carbon dioxide, the improvement which comprises employing as said membrane a metal salt where the metal cation is selected from metals of Groups IB, IIB, and VA, and the salt anion is an oxygen containing anion of a metal from Group VB, VIB, and VIIB.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: September 13, 1977
    Assignee: Suntech, Inc.
    Inventor: Walter H. Seitzer
  • Patent number: 4045512
    Abstract: Improved melt blending process for preparing block copolymer of poly(4,7-dioxadecamethylene adipamide)-polycaprolactam, which is also known as N-30203-6//6, involves continuing the melt blending until the polymer is characterized in that the maximum amount of the block copolymer recovered from an aqueous formic acid solution containing the dissolved block copolymer exceeds about 90%. Fiber prepared from such a characterized block copolymer does not fuse when scoured in boiling water.
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: August 30, 1977
    Assignee: Suntech, Inc.
    Inventors: Robert M. Thompson, Stephen L. Nickol
  • Patent number: 4045511
    Abstract: Process for preparing block copolymer involves dry blending salt of a prepolyamide, e.g. a 30203-6 salt, and particules of melt-spinnable polyamide. Blend is heated to a temperature in the range of between from the melting point of higher melting component to below amide-interchange temperature of a blend of the melt-spinnable polyamide and the homopolymer which would result from the polymerization of the salt. Heating and mixing are continued until substantially all of the salt and the polyamide are converted into a block copolymer. The latter can be used to make fibers.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: August 30, 1977
    Assignee: Suntech, Inc.
    Inventor: Stephen L. Nickol
  • Patent number: 4043925
    Abstract: Improved low smoking composition and method for cold forming metal parts is disclosed. The composition contains water, block copolymer of ethylene oxide and polypropylene oxide and which copolymer has a molecular weight of from about 1800 to about 2900, a sulfo-chlorinated fatty acid, potassium hydroxide and a compound having the following structure: ##STR1## wherein R is a C.sub.10 -C.sub.20 aliphatic group and the total of z, x and y are such that the compound is water soluble. The composition also has utility as a lubricant for plain bearings and ways.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: August 23, 1977
    Assignee: Suntech, Inc.
    Inventor: George F. Felton, Jr.
  • Patent number: 4042991
    Abstract: A portable structure which consists of a plurality of I beams placed side by side and hinged together in a parallelogram fashion such that adjacent I beams may be folded together.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: August 23, 1977
    Assignee: Suntech, Inc.
    Inventors: Robert L. Macy, Joseph E. Zupanick
  • Patent number: 4043410
    Abstract: A tool for use on sections of a drill string which utilizes the "journal bearing effect" to minimize the possibility of the drill string becoming stuck against the side of the wellbore due to differential pressures between the wellbore and the formation. The anti-sticking tool is designed to surround part of a section of the drill string, and to have holes passing therethrough, so that the pressure of the drilling fluids within the wellbore in combination with the rotation of the drill string against the inside surface of the tool causes the drilling fluids to be pushed out through these openings to prevent drill string contact and sticking against the side of the wellbore. The anti-sticking tool can take the shape of a plurality of collars spaced along a drill string section or one continuous helical spring extending part of the length of a section of drill string.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: August 23, 1977
    Assignee: Suntech, Inc.
    Inventors: John D. Bennett, Thomas W. Gallier